Accountant in Whitby, Ontario | Tax, Bookkeeping & Payroll Services

Whitby — Durham Region anchor

Whitby is one of Durham Region's largest communities and a stable economic anchor in the eastern Greater Toronto Area. The town has substantial residential development, retail, healthcare, and small business activity.

Industries we serve heavily in Whitby

• Small businesses and trades.
• Real estate investors.
• Professional corporations.

How Ontario's tax structure affects Whitby businesses and residents

Ontario uses the Harmonized Sales Tax (HST) at 13%, combining the 5% federal GST with an 8% provincial portion in a single tax administered entirely by the Canada Revenue Agency. This means Whitby businesses register once with CRA for combined GST/HST collection. The administrative simplicity (compared to BC, Saskatchewan, Manitoba, or Quebec, where separate provincial sales tax registrations are required) is one of Ontario's key advantages for multi-province businesses based in Whitby.

For incorporated Whitby businesses, Ontario's general corporate income tax rate is 11.5% and the small business rate is 3.2% on the first $500,000 of active business income. Combined with the federal rates, Whitby CCPCs pay 12.2% combined on small business income and 26.5% on general business income. Ontario uses the federal Tax Collection Agreement, so Whitby corporations file a single federal T2 covering both federal and provincial corporate tax.

Ontario Employer Health Tax for Whitby employers

Ontario Employer Health Tax (EHT) applies to Whitby employers with annual Ontario payroll above the exemption threshold (currently $1,000,000 for most private-sector employers; the exemption is phased out for the largest employers). Above the exemption, EHT rates range from 0.98% to 1.95% of Ontario payroll depending on payroll size. EHT is administered by the Ontario Ministry of Finance and remitted annually or in monthly/quarterly installments depending on size. We handle EHT registration, calculation, and remittance for Whitby employer clients.

WSIB Ontario for Whitby employers

The Workplace Safety and Insurance Board (WSIB) administers Ontario's workers' compensation system. Most Whitby employers must register with WSIB and pay premiums based on industry classification. Construction, manufacturing, trucking, and certain other industries carry significantly higher rates. We handle WSIB registration and remittance for Whitby employer clients.

Ontario-specific tax provisions for Whitby clients

• Ontario Innovation Tax Credit. Refundable provincial credit on top of federal SR&ED for eligible R&D corporations.
• Ontario Film and Television Tax Credit (OFTTC) and Ontario Production Services Tax Credit (OPSTC). Substantial labour-based credits for film and TV production.
• Ontario Interactive Digital Media Tax Credit (OIDMTC). For interactive digital media products.
• Ontario Computer Animation and Special Effects Tax Credit (OCASE).
• Ontario Non-Resident Speculation Tax. 25% on certain residential real estate purchases by non-residents.
• Ontario Co-operative Education Tax Credit. For qualifying co-op work placements.
• Personal Real Estate Corporation (PREC) rules. Permitted under RECO and the Trust in Real Estate Services Act.

Year-end tax planning specific to Whitby

Year-end planning for Ontario businesses includes the standard Canadian elements plus Ontario-specific considerations: Ontario EHT exposure management; review of any OITC, OFTTC, OPSTC, OIDMTC, or OCASE credits accumulated during the year; Ontario property tax interactions with rental property; PREC compliance for realtor clients; multi-province sales tax review for Whitby businesses selling into BC, Saskatchewan, Manitoba, or Quebec; and Toronto Vacant Home Tax declaration for any Toronto residential property holdings (annual declaration required regardless of whether tax is owing).

Canadian tax compliance calendar that applies to Whitby clients

The Canadian tax compliance calendar is the same regardless of where you live in Canada, but several deadlines are commonly missed or misunderstood by Whitby businesses and individuals:

• January 31. T4, T4A, and T5018 information returns due for the prior calendar year. Late filing penalties start at $100 and escalate quickly for larger employers.
• February 28. T5 investment income slips due for the prior calendar year.
• March 1 or March 2. RRSP, FHSA, and similar registered plan contribution deadline for the prior tax year (60 days into the new calendar year).
• March 31. T3 trust return deadline (90 days after the trust's calendar year end).
• April 30. T1 personal tax return deadline for most Canadians. Balance owing is due by this date regardless of whether the filing deadline is extended.
• June 15. T1 deadline for self-employed individuals and their spouses (although any balance owing is still due April 30).
• Six months after corporate year-end. T2 corporate income tax return filing deadline.
• Two or three months after corporate year-end. T2 balance owing payment deadline (three months for CCPCs claiming the small business deduction throughout the year and meeting the taxable income threshold; two months otherwise).
• Quarterly: March 15, June 15, September 15, December 15. Personal tax instalment due dates for taxpayers required to pay instalments.
• Monthly or quarterly. CRA source deduction remittances and GST/HST remittances based on the assigned filing frequency.

What happens when CRA contacts Whitby clients

Canadian taxpayers commonly receive several types of CRA contact each year. Knowing what each one means helps Whitby businesses and individuals respond appropriately:

• Notice of Assessment (NOA). Issued after CRA processes a return. The NOA states the assessed tax, refund or balance owing, and any adjustments CRA made. Review your NOA carefully against your filed return.
• Notice of Reassessment. Issued when CRA changes a previously assessed return. You have 90 days from the date of a Notice of Reassessment to file a Notice of Objection if you disagree.
• Pre-assessment review letter. A request for documentation about specific items on a return before CRA finalizes the assessment. Strict response deadlines.
• Post-assessment review letter. Same documentation request, but after the NOA has been issued. Strict response deadlines.
• Demand to file. A formal demand that you file a return that CRA believes is overdue. Failure to comply can lead to a Notional Assessment (CRA estimates your tax, almost always at a higher amount than actual).
• Audit notice. The most serious form of CRA contact. Audits can be desk audits (by mail) or field audits (CRA officer reviews books in person or virtually).
• Collections letter. Issued when there is an unpaid balance. CRA collections has significant powers including garnishment and asset seizure.

If you receive any form of CRA contact, contact us immediately. Do not call CRA back yourself and do not send documents without professional review.

How BOMCAS Canada handles CRA representation for Whitby clients

With your signed authorization on file (RC59 for businesses or AUT-01 for individuals), BOMCAS Canada can communicate with CRA on your behalf. This means: CRA calls about your file route to us; we can access your CRA My Account or My Business Account information; we respond to review letters, audit requests, and collections matters; we file Notices of Objection within the 90-day deadline if needed; we represent you in CRA audits virtually; and we coordinate with tax counsel for Tax Court of Canada appeals where required.

Common Canadian tax questions Whitby clients ask

Why working with BOMCAS Canada makes sense for Whitby

Whitby businesses and residents work with BOMCAS Canada for several reasons that may matter to you:

• Fixed-fee transparency. Most engagements are quoted as a fixed monthly fee or fixed per-project fee, signed in writing before any work begins. No surprise hourly invoices for routine work.
• One-business-day response standard. We staff to a one-business-day response standard for client emails and calls during normal business hours. No multi-day voicemail backlogs.
• Year-round support. Most clients have unlimited email and phone support included in the engagement, not just during tax season.
• Same accountant year over year. You are not transferred to a new junior every year. The same person who knows your file this year will still know it next year.
• Secure virtual delivery. Encrypted client portal, e-signature, multi-factor authentication, and direct CRA representation under your written authorization. PIPEDA-compliant. No driving to a CPA office.
• Canadian-only tax expertise. We do not do US-only tax, UK tax, or other foreign jurisdictions in isolation. Our cross-border work is always anchored by deep Canadian compliance. Every member of the team works exclusively on Canadian files.
• Industry depth. We have specialized experience across trucking, real estate, medical professionals, contractors, restaurants, e-commerce, farms, nonprofits, and other Canadian industries.

Getting started — what Whitby clients can expect

A typical engagement with BOMCAS Canada begins with a phone call or contact form submission. We respond within one business day to schedule a 15–30 minute discovery conversation by phone or video. The discovery call covers your current tax situation, accounting history, prior accountant relationship (if any), pain points, and goals. There is no sales pitch and no obligation. If we are a fit, we provide a written engagement letter with a fixed fee and clear scope. If we are not a fit, we are happy to suggest other Canadian professionals who might be.

Once the engagement letter is signed, you e-sign the CRA authorization (RC59 for businesses or AUT-01 for individuals), and we onboard you to the encrypted client portal. From that point forward, the relationship is structured around predictable monthly deliverables: bookkeeping, sales tax filings, payroll, and year-end financial statements plus T2 corporate tax (for incorporated businesses) — with proactive tax planning conversations throughout the year.

Services available to Whitby clients

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Talk to a Canadian accountant serving Whitby

Call 780-667-5250 or submit the contact form. We respond within one business day.

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